On tonight's episode of Antique's Roadshow on PBS, someone brought a signed photo of Albert Einstein while he was attending an honorary doctorate degree awarded to him by the historically black college of Lincoln University. This brought up the little known part of Einstein's life where he was one of the few prominent physicist who spoke about civil rights and racism in the US.
The PBS page also provided a link to an essay Einstein wrote in Pageant Magazine about racism in America at that time.
This was back in 1946. Have we changed much since then on this front?